Circuit Breaker
Magnetic Actuator VCB
Features
- Compact Design
By using very compact vacuum interrupter and magnetic actuator, we have realized the dream of developing of Korea’s smallest 24kV VCB. - Long life
Through VI transverse design, we aimed to minimize contact corrosion. Also, all moving parts are trasnversely symmetrical, which makes mechanical movement direct and in an arc.
Depending on type, this product can carry out making an breaking of rated current for 30,000-150,000 times without replacement or adjustment of any component parts. - Guarantee
The ISM should last at least 25 years without need for repair. - High Reliability
Other than minimizing the number of malfunctioning in the its key components, this circuit breaker monitors the status of all important components all the time.
If an accident occurred within a component in the circuit breaker, the controller should be able to sense this and immediately remove the cause of the accident.
This is how our products become highly reliable.
Ratings
| Type | JMV7212-630 | JMV1212-630 | JMV2412-630 |
|---|---|---|---|
| Rated voltage(kV) | 7.2 | 12 | 24 |
| Rated current(A) | 630 | ||
| Rated power frequency(Hz) | 60 | ||
| Rated short-circuit breaking current(kA) | 12.5 | ||
| Rated short-circuit making current(kA) | 32.5 | ||
| Rated power frequency withstand voltage(kA)(rms) | 20 | 28 | 50 |
| Rated lighting impulse withstand voltage(kV)(Peak) | 60 (1.2×50㎲) | 75 (1.2×50㎲) | 125 (1.2×50㎲) |
| No-load closing time(s) | ≤ 70 | ||
| Opening time(s) | ≤ 30 | ||
| Operating duty | O – 0.3sec – CO – 3min – CO | ||
| Applied standard | IEC 62271-100 (2006) | ||
| Spring charge method | Magnetic actuator mechanism | ||
| Input voltage(V) | DC 110V | ||
| Mechanical endurance | M2 (10,000 times) | ||
| Electrical endurance | E1 | ||
| Restrike class | C2 (Very low probability of strike) | ||
| Cable charging current | 31.5 | ||